DE69231369T2 - Verfahren und Einrichtung zur Audiodatenkompression - Google Patents

Verfahren und Einrichtung zur Audiodatenkompression

Info

Publication number
DE69231369T2
DE69231369T2 DE69231369T DE69231369T DE69231369T2 DE 69231369 T2 DE69231369 T2 DE 69231369T2 DE 69231369 T DE69231369 T DE 69231369T DE 69231369 T DE69231369 T DE 69231369T DE 69231369 T2 DE69231369 T2 DE 69231369T2
Authority
DE
Germany
Prior art keywords
band
block
spectral coefficients
word length
quantized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69231369T
Other languages
German (de)
English (en)
Other versions
DE69231369D1 (de
Inventor
Kyoya Tsutsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP27616891A external-priority patent/JP3200886B2/ja
Priority claimed from JP03276169A external-priority patent/JP3141451B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69231369D1 publication Critical patent/DE69231369D1/de
Publication of DE69231369T2 publication Critical patent/DE69231369T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE69231369T 1991-09-30 1992-09-28 Verfahren und Einrichtung zur Audiodatenkompression Expired - Lifetime DE69231369T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27616891A JP3200886B2 (ja) 1991-09-30 1991-09-30 オーディオ信号処理方法
JP03276169A JP3141451B2 (ja) 1991-09-30 1991-09-30 オーディオ信号処理方法

Publications (2)

Publication Number Publication Date
DE69231369D1 DE69231369D1 (de) 2000-09-21
DE69231369T2 true DE69231369T2 (de) 2001-03-29

Family

ID=26551786

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69231369T Expired - Lifetime DE69231369T2 (de) 1991-09-30 1992-09-28 Verfahren und Einrichtung zur Audiodatenkompression
DE69227570T Expired - Lifetime DE69227570T2 (de) 1991-09-30 1992-09-28 Verfahren und Anordnung zur Audiodatenkompression

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69227570T Expired - Lifetime DE69227570T2 (de) 1991-09-30 1992-09-28 Verfahren und Anordnung zur Audiodatenkompression

Country Status (6)

Country Link
US (2) US5375189A (fr)
EP (2) EP0786874B1 (fr)
AT (2) ATE173366T1 (fr)
AU (1) AU664386B2 (fr)
DE (2) DE69231369T2 (fr)
HK (1) HK1013536A1 (fr)

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JP3318825B2 (ja) * 1996-08-20 2002-08-26 ソニー株式会社 デジタル信号符号化処理方法、デジタル信号符号化処理装置、デジタル信号記録方法、デジタル信号記録装置、記録媒体、デジタル信号伝送方法及びデジタル信号伝送装置
JPH1084284A (ja) * 1996-09-06 1998-03-31 Sony Corp 信号再生方法および装置
JP3283200B2 (ja) * 1996-12-19 2002-05-20 ケイディーディーアイ株式会社 符号化音声データの符号化レート変換方法および装置
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JP3282661B2 (ja) * 1997-05-16 2002-05-20 ソニー株式会社 信号処理装置および方法
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JP3963850B2 (ja) * 2003-03-11 2007-08-22 富士通株式会社 音声区間検出装置
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CN102208188B (zh) * 2011-07-13 2013-04-17 华为技术有限公司 音频信号编解码方法和设备
JP6680029B2 (ja) * 2016-03-24 2020-04-15 ヤマハ株式会社 音響処理方法および音響処理装置
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Also Published As

Publication number Publication date
AU2604992A (en) 1993-04-01
EP0786874B1 (fr) 2000-08-16
DE69227570T2 (de) 1999-04-22
US5375189A (en) 1994-12-20
EP0535889A2 (fr) 1993-04-07
ATE173366T1 (de) 1998-11-15
DE69231369D1 (de) 2000-09-21
EP0535889A3 (en) 1994-11-09
AU664386B2 (en) 1995-11-16
DE69227570D1 (de) 1998-12-17
USRE36683E (en) 2000-05-02
ATE195618T1 (de) 2000-09-15
HK1013536A1 (en) 1999-08-27
EP0786874A3 (fr) 1997-12-29
EP0535889B1 (fr) 1998-11-11
EP0786874A2 (fr) 1997-07-30

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